W211 AMG Discuss the W211 AMG's such as the E55 and the E63

Problems! Can't beat a stock 2012 Mustang GT

Old May 23, 2013 | 07:52 AM
  #1  
AMG_Guy's Avatar
Thread Starter
Senior Member
 
Joined: Jul 2011
Posts: 293
Likes: 0
From: East Coast
CLS55
Problems! Can't beat a stock 2012 Mustang GT

I have a Eurocharged Supercharger Pulley and a box tune. No other modifications. I tried racing a stock 2012 Mustang GT tonight. From 0, from 15, from 40, and he beat me ALL times. My car feels fast....no errors...

Maybe IC Pump? Anyway I can know for sure?
Reply
Old May 23, 2013 | 07:56 AM
  #2  
ArmoE55's Avatar
MBWorld Fanatic!
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2011
Posts: 2,159
Likes: 160
2006 E55
Does he have a turbo under the hood?

'12 GT should be a cake walk for a STOCK E55.

A 5.0 with some bolt-ons might have something to keep up...but still shouldn't beat you like that. Also, your car likely heatsoaked and pulled timing after the second run.

Do you have any cooling mods?

Last edited by ArmoE55; May 23, 2013 at 08:23 AM.
Reply
Old May 23, 2013 | 08:22 AM
  #3  
AMG_Guy's Avatar
Thread Starter
Senior Member
 
Joined: Jul 2011
Posts: 293
Likes: 0
From: East Coast
CLS55
Originally Posted by ArmoE55
Does he has a turbo under the hood?

'12 GT should be a cake walk for a STOCK E55.

A 5.0 with some bolt-ons might have something to keep up...but still shouldn't beat you like that. Also, your car likely heatsoaked and pulled timing after the second run.

Do you have any cooling mods?
The Mustang GT is definitely stock, I know the owner pretty well and know he wouldn't sneak in a turbo, lol. About 3 months ago before I added a supercharger pulley/tune I went against a different friend that also had a 2012 stock GT and I walked him easily. So, it looks like I'm slower now with the pulley/tune!

I have zero cooling mods. I'm guessing I should start with the IC Pump?
Reply
Old May 23, 2013 | 08:25 AM
  #4  
ArmoE55's Avatar
MBWorld Fanatic!
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2011
Posts: 2,159
Likes: 160
2006 E55
The turbo comment was a joke.

You're not slower, but your car was probably heatsoaked, especially if you don't have any cooling mods. Where are you located? In the Tri-State area, it has been 90+ the last few days, so easy to lose power with these cars in high heat and humidity.

I'd start with larger capacity HE and a Bosch 010.

Like I said above, a '12 GT should be no issues at all for a stock E55.
Reply
Old May 23, 2013 | 08:31 AM
  #5  
GT-ER's Avatar
MBWorld Fanatic!
 
Joined: Jun 2010
Posts: 4,173
Likes: 7
From: Puerto Rico
2005 E55 AMG
A stock GT would be an easy kill. Bolt on GT's would be another story.
Reply
Old May 23, 2013 | 08:37 AM
  #6  
novae500's Avatar
MBWorld Fanatic!
 
Joined: Jan 2009
Posts: 3,182
Likes: 15
From: Northern VA
W211
your pump might be on its way out, get a new one and run him again.
Reply
Old May 23, 2013 | 08:38 AM
  #7  
AMG_Guy's Avatar
Thread Starter
Senior Member
 
Joined: Jul 2011
Posts: 293
Likes: 0
From: East Coast
CLS55
Originally Posted by ArmoE55
The turbo comment was a joke.

You're not slower, but your car was probably heatsoaked, especially if you don't have any cooling mods. Where are you located? In the Tri-State area, it has been 90+ the last few days, so easy to lose power with these cars in high heat and humidity.

I'd start with larger capacity HE and a Bosch 010.

Like I said above, a '12 GT should be no issues at all for a stock E55.
I'm near the tri-state area but above you, I'm in Rhode Island. It has been terribly humid here lately...I can't stand it!

Am I able to get the Bosch 010 from the dealer? I'm really hoping the issues I'm having are heat/cooling related and not something worse!
Reply
Old May 23, 2013 | 08:41 AM
  #8  
urbamworm's Avatar
MBWorld Fanatic!
 
Joined: Aug 2007
Posts: 2,596
Likes: 5
From: Jacksonville, FL
05 White Pano E55, Cadillac CTS-V
If you cruise down the road then punch it does the car blow a big black cloud behind you when it downshifts and takes off? Your box tune could be running way to rich and needs to be adjusted. I am different since I have a bigger throttle body and headers, but when I went to a supercharger pulley and got a "box tune" installed the car was running 10:1 air/fuel ratio when it should be mid 11s or even close to 12.

The car would dump a ton of fuel if from a stop I gunned it or cruising and then flooring it doing the downshift and taking off, same thing, big cloud of black smoke. You can expect a little bit of smoke but this was excessive like fogging the road out behind me like a tuned diesel damn near. I knew the tune was not right for my car. When I originally got the tune Jerry said they are usually pretty spot on but mine was not. I went to the dyno and saw the air/fuel on the graph and then sent the dyno file showing air/fuel (dynojet) to Jerry and he fixed it and I reflashed the car and I gained 32whp on the next pull and then another 2 on a pull following immediately after (1 minute later) with the air/fuel looking good now.

If you can do a few pulls right close together and the car doesn't loose a TON of power as in the supercharger doesn't engage, then I would say it is probably not your intercooler pump. If the car will do one or two good pulls then lose a TON of power, then it is your intercooler pump.
Reply
MB World Stories

The Best of Mercedes & AMG

story-0

6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

 Verdad Gallardo
story-1

Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

 Verdad Gallardo
story-2

Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

 Verdad Gallardo
story-3

8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

 Verdad Gallardo
story-4

Flawlessly Restored Mercedes 190E Evo II Heads to Auction

 Verdad Gallardo
story-5

Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

 Verdad Gallardo
story-6

Mercedes EQS Gets A Major Update: Everything You Need to Know

 Verdad Gallardo
story-7

5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

 Verdad Gallardo
story-8

Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

 Verdad Gallardo
story-9

10 Most Reliable Mercedes-Benz Models You Can Buy Used

 Verdad Gallardo
Old May 23, 2013 | 08:51 AM
  #9  
AMG_Guy's Avatar
Thread Starter
Senior Member
 
Joined: Jul 2011
Posts: 293
Likes: 0
From: East Coast
CLS55
Originally Posted by urbamworm
If you cruise down the road then punch it does the car blow a big black cloud behind you when it downshifts and takes off? Your box tune could be running way to rich and needs to be adjusted. I am different since I have a bigger throttle body and headers, but when I went to a supercharger pulley and got a "box tune" installed the car was running 10:1 air/fuel ratio when it should be mid 11s or even close to 12.

The car would dump a ton of fuel if from a stop I gunned it or cruising and then flooring it doing the downshift and taking off, same thing, big cloud of black smoke. You can expect a little bit of smoke but this was excessive like fogging the road out behind me like a tuned diesel damn near. I knew the tune was not right for my car. When I originally got the tune Jerry said they are usually pretty spot on but mine was not. I went to the dyno and saw the air/fuel on the graph and then sent the dyno file showing air/fuel (dynojet) to Jerry and he fixed it and I reflashed the car and I gained 32whp on the next pull and then another 2 on a pull following immediately after (1 minute later) with the air/fuel looking good now.

If you can do a few pulls right close together and the car doesn't loose a TON of power as in the supercharger doesn't engage, then I would say it is probably not your intercooler pump. If the car will do one or two good pulls then lose a TON of power, then it is your intercooler pump.
Thanks for tips!

When I'm cruising down the road and I punch it, I don't get a black cloud behind me.

I don't really feel like I am loosing a TON of power, but feel like it's definitely lacking (hence, not beatings the GT). I can speak from experience: about 2 months ago my supercharger pulley gave out (belt came off of it, ended up having it dealer replaced) and I did (of course) notice a HUGE loss of power when that happened. Should that be similar to the power loss I would experience with intercooler pump issues?

Is the air/fuel ratio something I can ask Eurocharged about and see if they could send me a new file to flash the car with and try, or should I try to dyno my car first to get some results?
Reply
Old May 23, 2013 | 08:53 AM
  #10  
FromM3toAMG's Avatar
Super Member
 
Joined: May 2011
Posts: 569
Likes: 3
From: Lynnwood,WA
07 E63
In my stock E63 I can embarrass a stock GT mustang.. Either he is lying... Or something is horribly wrong with your car. Are you 100% sure it's just a GT?
Reply
Old May 23, 2013 | 09:02 AM
  #11  
AMG_Guy's Avatar
Thread Starter
Senior Member
 
Joined: Jul 2011
Posts: 293
Likes: 0
From: East Coast
CLS55
Originally Posted by FromM3toAMG
In my stock E63 I can embarrass a stock GT mustang.. Either he is lying... Or something is horribly wrong with your car. Are you 100% sure it's just a GT?
Yes, 100% sure.
Reply
Old May 23, 2013 | 09:07 AM
  #12  
ArmoE55's Avatar
MBWorld Fanatic!
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2011
Posts: 2,159
Likes: 160
2006 E55
Does it have a 5.0 on the fender?
Reply
Old May 23, 2013 | 09:10 AM
  #13  
AMG_Guy's Avatar
Thread Starter
Senior Member
 
Joined: Jul 2011
Posts: 293
Likes: 0
From: East Coast
CLS55
Originally Posted by ArmoE55
5.0?
Yeah. And like I said, I raced one before (stock) back before my pulley/tune and I was waaaay out in front.
Reply
Old May 23, 2013 | 09:14 AM
  #14  
ArmoE55's Avatar
MBWorld Fanatic!
10 Year Member
Liked
Loved
Community Favorite
 
Joined: Jan 2011
Posts: 2,159
Likes: 160
2006 E55
Originally Posted by AMG_Guy
I don't really feel like I am loosing a TON of power, but feel like it's definitely lacking (hence, not beatings the GT). I can speak from experience: about 2 months ago my supercharger pulley gave out (belt came off of it, ended up having it dealer replaced) and I did (of course) notice a HUGE loss of power when that happened. Should that be similar to the power loss I would experience with intercooler pump issues?
Yes, your car will feel like a complete dog because your blower won't engage.

I still say upgrade the pump and run him again.
Reply
Old May 23, 2013 | 09:14 AM
  #15  
HeissRod's Avatar
MBWorld Fanatic!
 
Joined: Jun 2009
Posts: 4,429
Likes: 61
From: Cypress, TX
'06 E55, '15 Jeep SRT8, '94 Mustang GT
Originally Posted by AMG_Guy
I can speak from experience: about 2 months ago my supercharger pulley gave out (belt came off of it, ended up having it dealer replaced) and I did (of course) notice a HUGE loss of power when that happened. Should that be similar to the power loss I would experience with intercooler pump issues?
Did the dealer install the E/C pulley? Can you visually confirm that the pulley on the car is a E/C one?
Reply
Old May 23, 2013 | 09:15 AM
  #16  
urbamworm's Avatar
MBWorld Fanatic!
 
Joined: Aug 2007
Posts: 2,596
Likes: 5
From: Jacksonville, FL
05 White Pano E55, Cadillac CTS-V
Originally Posted by AMG_Guy
Thanks for tips!

When I'm cruising down the road and I punch it, I don't get a black cloud behind me.

I don't really feel like I am loosing a TON of power, but feel like it's definitely lacking (hence, not beatings the GT). I can speak from experience: about 2 months ago my supercharger pulley gave out (belt came off of it, ended up having it dealer replaced) and I did (of course) notice a HUGE loss of power when that happened. Should that be similar to the power loss I would experience with intercooler pump issues?

Is the air/fuel ratio something I can ask Eurocharged about and see if they could send me a new file to flash the car with and try, or should I try to dyno my car first to get some results?
If you aren't seeing a lot of black smoke I wouldn't bother contacting Eurocharged, the tune is most likely fine. It may just be your cooling isn't up to the task now with the extra boost and/or your pump has let go. What kind of weather are you in now, is it hot out? Even with upgraded heat exchager/pump/separated coolant system with 1.5 gallon tank, I can still lose power on hot days.

Certainly going to a dyno and seeing what the car does would be a good start, just be sure they also have a wideband o2 sensor hooked up to get your air/fuel ratio with the graph.
Reply
Old May 23, 2013 | 09:20 AM
  #17  
AMG_Guy's Avatar
Thread Starter
Senior Member
 
Joined: Jul 2011
Posts: 293
Likes: 0
From: East Coast
CLS55
Originally Posted by HeissRod
Did the dealer install the E/C pulley? Can you visually confirm that the pulley on the car is a E/C one?
I did have my MB dealer install the Eurocharged s/c pulley, and yes I did visually confirm it is the EC one. After they installed it, I re-flashed the car with a new file from Jerry @ Eurocharged.

Originally Posted by urbamworm
If you aren't seeing a lot of black smoke I wouldn't bother contacting Eurocharged, the tune is most likely fine. It may just be your cooling isn't up to the task now with the extra boost and/or your pump has let go. What kind of weather are you in now, is it hot out? Even with upgraded heat exchager/pump/separated coolant system with 1.5 gallon tank, I can still lose power on hot days.

Certainly going to a dyno and seeing what the car does would be a good start, just be sure they also have a wideband o2 sensor hooked up to get your air/fuel ratio with the graph.
It is pretty hot out, been 70-80 degree days with VERY HIGH humidity (70-80%).

Should I just go ahead and replace the IC Pump before dyno'ing?
Reply
Old May 23, 2013 | 09:26 AM
  #18  
urbamworm's Avatar
MBWorld Fanatic!
 
Joined: Aug 2007
Posts: 2,596
Likes: 5
From: Jacksonville, FL
05 White Pano E55, Cadillac CTS-V
If you have some spare cash laying around go for it, guess it can't hurt to have a new one in there but I would see what the car shows on the dyno. The graph is probably going to start falling in power around 5500-6000rpm range and your fuel will do the same going down to 10:1 as your intake air temps increase. It is hard to say if it is the pump acting up or just being warm out and on a stock intercooler/pump setup.
Reply
Old May 23, 2013 | 09:28 AM
  #19  
berti_00's Avatar
MBWorld Fanatic!
15 Year Member
Photogenic
Photoriffic
Shutterbug
 
Joined: May 2007
Posts: 6,406
Likes: 140
From: Clearwater Beach, Florida
2016 Cls63s AMG
yah def replace the IC pump and than dyno
Reply
Old May 23, 2013 | 09:44 AM
  #20  
GregMB's Avatar
MBWorld Fanatic!
 
Joined: Mar 2011
Posts: 1,835
Likes: 12
From: The Granite State
.
Originally Posted by AMG_Guy
Yeah. And like I said, I raced one before (stock) back before my pulley/tune and I was waaaay out in front.
Do some datalogging...

The latest EuroCharged ECU software has datalogging built in. Hook up your laptop and the cable and go out driving for a while. The data you collect will tell you conclusively what is going on with your IATs and timing.

Jerry is making it REALLY easy for all of us to collect accurate data from the E55 now. It's a shame that more people aren't taking advantage of it.


-G
Reply
Old May 23, 2013 | 10:17 AM
  #21  
AMG_Guy's Avatar
Thread Starter
Senior Member
 
Joined: Jul 2011
Posts: 293
Likes: 0
From: East Coast
CLS55
Originally Posted by GregMB
Do some datalogging...

The latest EuroCharged ECU software has datalogging built in. Hook up your laptop and the cable and go out driving for a while. The data you collect will tell you conclusively what is going on with your IATs and timing.

Jerry is making it REALLY easy for all of us to collect accurate data from the E55 now. It's a shame that more people aren't taking advantage of it.


-G
This was my plan! I've tried doing this a few times, but always get an "Unable to verify VIN" message. I tried loading in my ECU file first, running as administrator, still no luck. I emailed EC last night actually asking for some advice.
Reply
Old May 23, 2013 | 10:45 AM
  #22  
AMG E Power's Avatar
MBWorld Fanatic!
 
Joined: Feb 2012
Posts: 1,355
Likes: 6
E55 amg
I walked the 5.0s stock. something is wrong. ppl should focus on cooling mods first before u go putting a upper or lower pulley on. new IC pump slip cooling with trunk tank being best option or front engine bay tank, headers. the intercooler is the biggest problem being its right under the blower if u have tons of money A new bigger better intercooler
Reply
Old May 23, 2013 | 10:56 AM
  #23  
TheOtherDodge's Avatar
Super Member
 
Joined: Nov 2011
Posts: 835
Likes: 20
From: Houston, Texas
2005 E55 AMG
I wouldn't quite say a stock E can embarass a GT. But, with your mods, you should! I have a female friend that has one, an auto with ONLY CAI and mufflers and it went 12.69 on regular tires! We were both suprised!
Reply
Old May 23, 2013 | 12:47 PM
  #24  
Denroll's Avatar
MBWorld Fanatic!
 
Joined: Oct 2011
Posts: 2,279
Likes: 27
From: A to the Z (the state)
'06 E55
Look at this. Dyno runs done on the same day with same mods on Jerry's heartbreaker. Try to guess which run had the dead cooling system...




The car can still feel kinda fast down low, but it falls on its face hard up top.

For the record, we ended up getting 527whp that day and it was 94 degrees in the shop.
Reply
Old May 23, 2013 | 12:52 PM
  #25  
FinanceMike's Avatar
Senior Member
 
Joined: Dec 2011
Posts: 288
Likes: 2
From: FL
CLS55
Unless you are doing an ECU tune/flash to a stock car only, I think that a custom dyno tune should accompany any modification. I went slower initially with the box flash for the sc pulley/tune than I did with the ECU tune only.
Reply

Thread Tools
Search this Thread
Rate This Thread
Rate This Thread:
You have already rated this thread Rating: Thread Rating: 0 votes,  average.


All times are GMT -4. The time now is 01:56 PM.

story-0
6 Mercedes Models That Did NOT Age Well (But Are Somehow Still Cool)

Slideshow: Not every Mercedes design becomes timeless, some feel stuck in the era they came from.

By Verdad Gallardo | 2026-05-12 18:09:07


VIEW MORE
story-1
Manual Mercedes? 6 Times Sindelfingen Let Drivers Have All The Fun

Slideshow: Yes, Mercedes built manual cars, and some of them are far more interesting than you'd expect.

By Verdad Gallardo | 2026-05-02 12:36:58


VIEW MORE
story-2
Mercedes SLR McLaren 722 S Is Extremely Rare Example Modified by McLaren

Slideshow: A one-of-one U.S.-spec Mercedes-Benz SLR McLaren Roadster became even rarer after a factory-backed transformation at McLaren's headquarters.

By Verdad Gallardo | 2026-04-29 11:19:28


VIEW MORE
story-3
8 Classic Boxy Mercedes Designs That Have Aged Like Fine Wine

Slideshow: Before curves took over, Mercedes mastered the art of the straight line, and some of those shapes still look right today.

By Verdad Gallardo | 2026-04-25 12:05:49


VIEW MORE
story-4
Flawlessly Restored Mercedes 190E Evo II Heads to Auction

Slideshow: The 190E Evolution II shows how a homologation necessity became a six-figure collector icon.

By Verdad Gallardo | 2026-04-22 17:53:47


VIEW MORE
story-5
Electric Mercedes C-Class Unveiled: 11 Things You Need to Know

Slideshow: Mercedes is turning one of its core nameplates electric, and the details show just how serious this shift is.

By Verdad Gallardo | 2026-04-21 13:58:06


VIEW MORE
story-6
Mercedes EQS Gets A Major Update: Everything You Need to Know

Slideshow: Faster charging, longer range, and a controversial steer-by-wire system define the latest evolution of Mercedes-Benz EQS.

By Verdad Gallardo | 2026-04-15 10:35:34


VIEW MORE
story-7
5 Underrated Mercedes-Benz Models That Don't Get the Love They Deserve

Slideshow: These overlooked Mercedes-Benz models never got the spotlight, but they quietly delivered more than most remember.

By Verdad Gallardo | 2026-04-13 19:35:45


VIEW MORE
story-8
Mercedes 300D Has Pushed Well Past 1 Million Miles and It Ain't Stopping

Slideshow: A well-used 1991 Mercedes-Benz 300D with more than one million miles is now looking for a new owner, and it still appears ready for more.

By Verdad Gallardo | 2026-04-10 10:05:15


VIEW MORE
story-9
10 Most Reliable Mercedes-Benz Models You Can Buy Used

Slideshow: From bulletproof sedans to surprisingly tough SUVs, these Mercedes models proved that the three-pointed star can go the distance.

By Verdad Gallardo | 2026-04-08 09:55:49


VIEW MORE